An angled ejector avoidance hole forming tool
By designing an angled thimble avoidance hole forming tool, the symmetry of the cutting edge and the design of the positioning tip are solved, and the problems of slow processing speed, low efficiency and high cost of the thimble avoidance guide holes in the mold parts are achieved, achieving a more efficient and lower cost machining effect.
Patent Information
- Application Number
- CN202421425745.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the prior art, the thimble avoidance guide hole processing of mold parts has problems such as slow speed, low efficiency and high cost, and there is a lack of conventional tools for processing guide angles.
An angled thimble avoiding hole forming tool is designed, including a tool holder and a processing part. The processing part has two mutually symmetric cutting edges, and the ends meet to form a positioning tip, which can process the cone surface in the thimble hole to achieve the formation of a guide angle.
Through the use of this forming tool, the speed and efficiency of the processing of the thimble hole guide surface can be improved, and the cost can be reduced, and the problems of slow processing speed, low efficiency and high cost in the prior art can be solved.
Smart Images
Figure CN222725544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cutting tools, in particular to an angled ejector avoidance hole forming tool. Background Art
[0002] With the rapid development of mold technology, mold assembly technology has also undergone great changes. In recent years, many mold designs have taken into account the function of rapid mold disassembly and assembly during the research and development stage, requiring that parts can be quickly installed from the front of the mold frame. Therefore, the ejector holes of new molds all have a guiding function, that is, a conical surface is designed in the ejector hole for guidance (such as Figure 5 as shown).
[0003] In the prior art, most factories use discharge molding to process the angled ejector avoidance guide holes of mold parts. This has not only slow processing speed, low efficiency and high cost, but also there are currently no conventional tools on the market for processing the guide angles of ejector avoidance holes. Therefore, it is urgent to develop a special tool for processing angled ejector avoidance molding. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides an angled ejector avoidance hole forming tool, which is used for processing the guide angle of the ejector avoidance hole of a mold part.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A tool for forming an ejector avoidance hole with an angle comprises a tool handle and a processing part connected to the tool handle, wherein the processing part comprises a tool body connected to the tool handle, and the tool body is provided with two mutually symmetrical cutting edges at one end opposite to the tool handle, and the ends of the two cutting edges meet to form a positioning tip.
[0007] Optionally, a spiral chip groove is provided on the tool body, and one end of the chip groove extends to one side of the cutting edge.
[0008] Optionally, a cutting edge for support and guidance is further provided on the outer side of the tool body near the chip groove, and the cutting edge and the outer side surface of the tool handle are on the same circumferential surface.
[0009] Optionally, the cutting edge adopts the same spiral structure as the chip groove.
[0010] Optionally, a groove is provided on one side of the cutting edge, and the groove is communicated with the chip removal groove.
[0011] Optionally, the cutting edge adopts a double-angle cutting edge.
[0012] Optionally, the shank and the processing part are connected by integral molding, and the material of the processing part is tungsten steel alloy.
[0013] Optionally, the angle between the outer side surfaces of the two cutting edges is 60 degrees.
[0014] Beneficial Effects
[0015] In the utility model, the processing part is driven to rotate synchronously by the tool handle, so that the cutting edge of the processing part can cut the ejector hole of the mold part. Since there are two chip cutting edges, the two are symmetrical to each other and the ends meet to form a positioning tip, so it is possible to process a conical surface in the ejector hole so that it has a guide angle. Compared with the discharge forming process, the use of the forming tool to process the guide surface of the ejector hole can improve the processing speed and efficiency and reduce the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a side view structural schematic diagram of the utility model;
[0018] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;
[0019] Figure 4 It is a main structural schematic diagram of the utility model;
[0020] Figure 5 It is a schematic diagram of the position structure of the ejector hole and the guide surface on the mold part;
[0021] Among them, 1. tool handle; 2. processing part; 21. tool body; 22. cutting edge; 23. chip groove; 24. blade band; 25. groove; 3. positioning tip; 4. mold part; 5. ejector pin hole; 6. guide surface. DETAILED DESCRIPTION
[0022] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0023] like Figure 1-Figure 5 As shown, an angled ejector avoidance hole forming tool includes a tool handle 1 and a processing portion 2. The processing portion 2 includes a tool body 21 connected to the tool handle 1. The tool body 21 is provided with two symmetrical cutting edges 22 at one end opposite to the tool handle 1, and the ends of the two cutting edges 22 intersect to form a positioning tip 3.
[0024] As mentioned above, the tool handle 1 and the processing part 2 can rotate synchronously, and the cutting edge 22 of the processing part 2 cuts the ejector hole 5 of the mold part 4 by rotating. Since there are two cutting edges 22, which are symmetrical to each other and intersect at the ends to form a positioning tip 3, it is possible to process a conical surface in the ejector hole 5 so that it has a guide angle; compared with the discharge forming process, the use of the forming tool to process the guide surface 6 of the ejector hole 5 can improve the processing speed and efficiency and reduce the processing cost.
[0025] A guide surface 6 is usually provided in the ejector hole 5 on the mold part 4, and the guide surface 6 is a conical structure, and its cone angle is usually 60 degrees; therefore, a suitable guide surface 6 can be cut and processed by only making the angle between the outer sides of the two cutting edges 22 60 degrees.
[0026] Among them, the tool handle 1 and the processing part 2 are connected by integral molding, and the material of the processing part 2 is tungsten steel alloy; a double-angle positioning tip 3 is added to the head of the processing part 2, which can effectively avoid the occurrence of problems such as inaccurate tool positioning and processing offset; the bottom and side cutting edges of the cutting edge 22 are designed as reinforced double-angle edges, which not only ensure the sharpness of the edge but also maximize the support of the side wall of the drill bit.
[0027] Furthermore, a spiral chip groove 23 is provided on the cutter body 21, and one end of the chip groove 23 extends to one side of the cutting edge 22. The chip groove 23 is designed with a large-angle spiral groove structure, which can ensure that the tool removes chips in time during the machining process to the greatest extent, prevent extrusion of broken chips and tool sticking, and obtain higher machining efficiency and quality.
[0028] A cutting edge 24 is also provided on the outside of the cutter body 21 near the chip groove 23. The cutting edge 24 is formed along the spiral direction and has the same spiral structure as the chip groove 23. The cutting edge 24 contacts the hole wall, provides guidance for the processing part 2, and maintains the straightness and accuracy of the drilling; the cutting edge 24 can support the processing part 2, reduce the swing and vibration of the processing part 2 during the drilling process, and improve the processing stability; the width and geometric shape of the cutting edge 24 will affect the size and accuracy of the drilling hole. Here, the cutting edge 24 and the outer side surface of the tool handle 1 are on the same circumferential surface, that is, the outer diameter of the cutting edge 24 is the same as the outer diameter of the tool handle 1; the cutting edge 24 and the chip groove 23 together help guide the chips out of the hole to prevent chip blockage, and can also increase the strength and rigidity of the processing part 2, reducing its deformation and breakage risks.
[0029] In addition, a groove 25 is provided on one side of the cutting edge 22, and the groove 25 is connected to the chip groove 23. This structure can not only guide the chips into the chip groove 23, but also enable the cutting edge 22 to grind a very narrow edge, greatly improving the strength of the cutting edge.
[0030] In summary, the tool body 21 of the utility model is designed to be slender, and its head is designed with a double-angle positioning tip 3, which effectively avoids the occurrence of problems such as inaccurate tool positioning and processing offset; the material of the processing part 2 uses high-strength tungsten steel, and the surface is coated with black titanium aluminum nitride (AlTiN), which greatly improves the hardness, wear resistance and lower friction coefficient of the tool, and can obtain better cutting performance and longer tool life.
[0031] The processing part 2 adopts a double-edged sharpening method to ensure rapid chip removal in the chip groove 23; the edge band 24 uses different angles to effectively ensure good support and cutting ability during processing. The total length of the forming tool is 65mm, and its accuracy can be controlled within plus or minus 0.02mm.
[0032] At present, the angle ejector avoidance guide forming tool has been officially put into use within the company and has successfully completed mold processing for several key projects.
[0033] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0035] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.
Claims
1. An angled ejector avoidance hole forming tool, comprising a tool handle (1) and a processing portion (2) connected to the tool handle (1), characterized in that: The processing portion (2) comprises a knife body (21) connected to the knife handle (1); one end of the knife body (21) opposite to the knife handle (1) is provided with two mutually symmetrical cutting edges (22), and the ends of the two cutting edges (22) meet to form a positioning tip (3).
2. The angled ejector avoidance hole forming tool according to claim 1, characterized in that: The cutter body (21) is provided with a spiral chip removal groove (23), and one end of the chip removal groove (23) extends to one side of the cutting edge (22).
3. The angled ejector avoidance hole forming tool according to claim 2, characterized in that: A cutting edge (24) for supporting and guiding is also provided on the outer side of the tool body (21) near the chip removal groove (23), and the cutting edge (24) and the outer side surface of the tool handle (1) are both on the same circumferential surface.
4. The angled ejector avoidance hole forming tool according to claim 3, characterized in that: The edge band (24) adopts the same spiral structure as the chip removal groove (23).
5. The angled ejector avoidance hole forming tool according to claim 4, characterized in that: A groove (25) is provided on one side of the cutting edge (22), and the groove (25) is communicated with the chip removal groove (23).
6. The angled ejector avoidance hole forming tool according to claim 1, characterized in that: The cutting edge (22) adopts a double-angle cutting edge.
7. The angled ejector avoidance hole forming tool according to claim 1, characterized in that: The shank (1) and the processing portion (2) are connected by integral molding, and the material of the processing portion (2) is tungsten steel alloy.
8. The angled ejector avoidance hole forming tool according to claim 1, characterized in that: The included angle between the outer side surfaces of the two cutting edges (22) is 60 degrees.